1 # SPDX-License-Identifier: GPL-2.0+
10 # To see a list of typical targets execute "make help"
11 # More info can be located in ./README
12 # Comments in this file are targeted only to the developer, do not
13 # expect to learn how to build the kernel reading this file.
15 # Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour)
19 # Determine target architecture for the sandbox
20 include include/host_arch.h
21 ifeq ("", "$(CROSS_COMPILE)")
22 MK_ARCH="${shell uname -m}"
24 MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^\s*\([^\/]*\/\)*\([^-]*\)-\S*/\2/p'}"
27 ifeq ("x86_64", $(MK_ARCH))
28 export HOST_ARCH=$(HOST_ARCH_X86_64)
29 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
30 export HOST_ARCH=$(HOST_ARCH_X86)
31 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
32 export HOST_ARCH=$(HOST_ARCH_AARCH64)
33 else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7l"))
34 export HOST_ARCH=$(HOST_ARCH_ARM)
35 else ifeq ("riscv32", $(MK_ARCH))
36 export HOST_ARCH=$(HOST_ARCH_RISCV32)
37 else ifeq ("riscv64", $(MK_ARCH))
38 export HOST_ARCH=$(HOST_ARCH_RISCV64)
42 # Avoid funny character set dependencies
46 export LC_COLLATE LC_NUMERIC
48 # Avoid interference with shell env settings
51 # We are using a recursive build, so we need to do a little thinking
52 # to get the ordering right.
54 # Most importantly: sub-Makefiles should only ever modify files in
55 # their own directory. If in some directory we have a dependency on
56 # a file in another dir (which doesn't happen often, but it's often
57 # unavoidable when linking the built-in.o targets which finally
58 # turn into vmlinux), we will call a sub make in that other dir, and
59 # after that we are sure that everything which is in that other dir
62 # The only cases where we need to modify files which have global
63 # effects are thus separated out and done before the recursive
64 # descending is started. They are now explicitly listed as the
68 # ---------------------------------------------------------------------------
70 # Normally, we echo the whole command before executing it. By making
71 # that echo $($(quiet)$(cmd)), we now have the possibility to set
72 # $(quiet) to choose other forms of output instead, e.g.
74 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
75 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
77 # If $(quiet) is empty, the whole command will be printed.
78 # If it is set to "quiet_", only the short version will be printed.
79 # If it is set to "silent_", nothing will be printed at all, since
80 # the variable $(silent_cmd_cc_o_c) doesn't exist.
82 # A simple variant is to prefix commands with $(Q) - that's useful
83 # for commands that shall be hidden in non-verbose mode.
87 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
88 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
90 # To put more focus on warnings, be less verbose as default
91 # Use 'make V=1' to see the full commands
93 ifeq ("$(origin V)", "command line")
100 ifeq ($(KBUILD_VERBOSE),1)
108 # If the user is running make -s (silent mode), suppress echoing of
111 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
112 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
116 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
121 export quiet Q KBUILD_VERBOSE
123 # kbuild supports saving output files in a separate directory.
124 # To locate output files in a separate directory two syntaxes are supported.
125 # In both cases the working directory must be the root of the kernel src.
127 # Use "make O=dir/to/store/output/files/"
129 # 2) Set KBUILD_OUTPUT
130 # Set the environment variable KBUILD_OUTPUT to point to the directory
131 # where the output files shall be placed.
132 # export KBUILD_OUTPUT=dir/to/store/output/files/
135 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
138 # KBUILD_SRC is set on invocation of make in OBJ directory
139 # KBUILD_SRC is not intended to be used by the regular user (for now)
140 ifeq ($(KBUILD_SRC),)
142 # OK, Make called in directory where kernel src resides
143 # Do we want to locate output files in a separate directory?
144 ifeq ("$(origin O)", "command line")
145 KBUILD_OUTPUT := $(O)
148 # That's our default target when none is given on the command line
152 # Cancel implicit rules on top Makefile
153 $(CURDIR)/Makefile Makefile: ;
155 ifneq ($(KBUILD_OUTPUT),)
156 # Invoke a second make in the output directory, passing relevant variables
157 # check that the output directory actually exists
158 saved-output := $(KBUILD_OUTPUT)
159 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
161 $(if $(KBUILD_OUTPUT),, \
162 $(error failed to create output directory "$(saved-output)"))
164 # Look for make include files relative to root of kernel src
166 # This does not become effective immediately because MAKEFLAGS is re-parsed
167 # once after the Makefile is read. It is OK since we are going to invoke
169 MAKEFLAGS += --include-dir=$(CURDIR)
171 PHONY += $(MAKECMDGOALS) sub-make
173 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
177 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
178 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
180 # Leave processing to above invocation of make
182 endif # ifneq ($(KBUILD_OUTPUT),)
183 endif # ifeq ($(KBUILD_SRC),)
185 # We process the rest of the Makefile if this is the final invocation of make
186 ifeq ($(skip-makefile),)
188 # Do not print "Entering directory ...",
189 # but we want to display it when entering to the output directory
190 # so that IDEs/editors are able to understand relative filenames.
191 MAKEFLAGS += --no-print-directory
193 # Call a source code checker (by default, "sparse") as part of the
196 # Use 'make C=1' to enable checking of only re-compiled files.
197 # Use 'make C=2' to enable checking of *all* source files, regardless
198 # of whether they are re-compiled or not.
200 # See the file "doc/sparse.txt" for more details, including
201 # where to get the "sparse" utility.
203 ifeq ("$(origin C)", "command line")
204 KBUILD_CHECKSRC = $(C)
206 ifndef KBUILD_CHECKSRC
210 # Use make M=dir to specify directory of external module to build
211 # Old syntax make ... SUBDIRS=$PWD is still supported
212 # Setting the environment variable KBUILD_EXTMOD take precedence
214 KBUILD_EXTMOD ?= $(SUBDIRS)
217 ifeq ("$(origin M)", "command line")
218 KBUILD_EXTMOD := $(M)
221 # If building an external module we do not care about the all: rule
222 # but instead _all depend on modules
224 ifeq ($(KBUILD_EXTMOD),)
230 ifeq ($(KBUILD_SRC),)
231 # building in the source tree
234 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
235 # building in a subdirectory of the source tree
238 srctree := $(KBUILD_SRC)
245 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
247 export srctree objtree VPATH
249 # Make sure CDPATH settings don't interfere
252 #########################################################################
254 HOSTARCH := $(shell uname -m | \
256 -e s/sun4u/sparc64/ \
259 -e s/ppc64/powerpc/ \
261 -e s/macppc/powerpc/\
264 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
265 sed -e 's/\(cygwin\).*/cygwin/')
267 export HOSTARCH HOSTOS
269 #########################################################################
271 # set default to nothing for native builds
272 ifeq ($(HOSTARCH),$(ARCH))
276 KCONFIG_CONFIG ?= .config
277 export KCONFIG_CONFIG
279 # SHELL used by kbuild
280 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
281 else if [ -x /bin/bash ]; then echo /bin/bash; \
282 else echo sh; fi ; fi)
284 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
285 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
286 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
290 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
291 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
292 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
293 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
294 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
296 # With the move to GCC 6, we have implicitly upgraded our language
297 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
298 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
299 # have older compilers as their default, so we make it explicit for
300 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
301 CSTD_FLAG := -std=gnu11
302 ifeq ($(HOSTOS),linux)
303 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
306 ifeq ($(HOSTOS),cygwin)
307 KBUILD_HOSTCFLAGS += -ansi
310 # Mac OS X / Darwin's C preprocessor is Apple specific. It
311 # generates numerous errors and warnings. We want to bypass it
312 # and use GNU C's cpp. To do this we pass the -traditional-cpp
313 # option to the compiler. Note that the -traditional-cpp flag
314 # DOES NOT have the same semantics as GNU C's flag, all it does
315 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
317 # Apple's linker is similar, thanks to the new 2 stage linking
318 # multiple symbol definitions are treated as errors, hence the
319 # -multiply_defined suppress option to turn off this error.
321 ifeq ($(HOSTOS),darwin)
322 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
323 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
324 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
326 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
327 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
329 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
330 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
332 # Snow Leopards build environment has no longer restrictions as described above
333 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
334 KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
335 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
337 # macOS Mojave (10.14.X)
338 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
339 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
342 # Decide whether to build built-in, modular, or both.
343 # Normally, just do built-in.
348 # If we have only "make modules", don't compile built-in objects.
349 # When we're building modules with modversions, we need to consider
350 # the built-in objects during the descend as well, in order to
351 # make sure the checksums are up to date before we record them.
353 ifeq ($(MAKECMDGOALS),modules)
354 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
357 # If we have "make <whatever> modules", compile modules
358 # in addition to whatever we do anyway.
359 # Just "make" or "make all" shall build modules as well
361 # U-Boot does not need modules
362 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
363 # KBUILD_MODULES := 1
366 #ifeq ($(MAKECMDGOALS),)
367 # KBUILD_MODULES := 1
370 # Check ths size of a binary:
373 # #2: Size limit in bytes (decimal or 0xhex)
375 actual=$$( wc -c $1 | awk '{print $$1}'); \
376 limit=$$( printf "%d" $2 ); \
377 if test $$actual -gt $$limit; then \
378 echo "$1 exceeds file size limit:" >&2; \
379 echo " limit: $$(printf %#x $$limit) bytes" >&2; \
380 echo " actual: $$(printf %#x $$actual) bytes" >&2; \
381 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
387 export KBUILD_MODULES KBUILD_BUILTIN
388 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
390 # We need some generic definitions (do not try to remake the file).
391 scripts/Kbuild.include: ;
392 include scripts/Kbuild.include
394 # Make variables (CC, etc...)
396 AS = $(CROSS_COMPILE)as
398 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
399 LD = $(CROSS_COMPILE)ld.bfd
401 LD = $(CROSS_COMPILE)ld
403 CC = $(CROSS_COMPILE)gcc
405 AR = $(CROSS_COMPILE)ar
406 NM = $(CROSS_COMPILE)nm
407 LDR = $(CROSS_COMPILE)ldr
408 STRIP = $(CROSS_COMPILE)strip
409 OBJCOPY = $(CROSS_COMPILE)objcopy
410 OBJDUMP = $(CROSS_COMPILE)objdump
418 DTC ?= $(objtree)/scripts/dtc/dtc
421 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
422 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
424 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
426 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
427 -Wno-format-security \
428 -fno-builtin -ffreestanding $(CSTD_FLAG)
429 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
430 KBUILD_AFLAGS := -D__ASSEMBLY__
433 ifeq ($(cc-name),clang)
434 ifneq ($(CROSS_COMPILE),)
435 CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
436 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
437 CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
438 GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
440 ifneq ($(GCC_TOOLCHAIN),)
441 CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
443 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
444 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
445 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
446 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
449 # Don't generate position independent code
450 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
451 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
453 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
454 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
455 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
457 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
458 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
459 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
460 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
461 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
462 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
464 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
465 export KBUILD_CFLAGS KBUILD_AFLAGS
467 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
469 # When compiling out-of-tree modules, put MODVERDIR in the module
470 # tree rather than in the kernel tree. The kernel tree might
472 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
474 # Files to ignore in find ... statements
476 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
477 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
479 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
480 --exclude CVS --exclude .pc --exclude .hg --exclude .git
482 # ===========================================================================
483 # Rules shared between *config targets and build targets
485 # Basic helpers built in scripts/
486 PHONY += scripts_basic
488 $(Q)$(MAKE) $(build)=scripts/basic
489 $(Q)rm -f .tmp_quiet_recordmcount
491 # To avoid any implicit rule to kick in, define an empty command.
492 scripts/basic/%: scripts_basic ;
494 PHONY += outputmakefile
495 # outputmakefile generates a Makefile in the output directory, if using a
496 # separate output directory. This allows convenient use of make in the
499 ifneq ($(KBUILD_SRC),)
500 $(Q)ln -fsn $(srctree) source
501 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
504 # To make sure we do not include .config for any of the *config targets
505 # catch them early, and hand them over to scripts/kconfig/Makefile
506 # It is allowed to specify more targets when calling make, including
507 # mixing *config targets and build targets.
508 # For example 'make oldconfig all'.
509 # Detect when mixed targets is specified, and make a second invocation
510 # of make so .config is not included in this case either (for *config).
512 version_h := include/generated/version_autogenerated.h
513 timestamp_h := include/generated/timestamp_autogenerated.h
514 defaultenv_h := include/generated/defaultenv_autogenerated.h
515 dt_h := include/generated/dt.h
517 no-dot-config-targets := clean clobber mrproper distclean \
518 help %docs check% coccicheck \
519 ubootversion backup tests check qcheck tcheck
525 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
526 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
531 ifeq ($(KBUILD_EXTMOD),)
532 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
534 ifneq ($(words $(MAKECMDGOALS)),1)
540 ifeq ($(mixed-targets),1)
541 # ===========================================================================
542 # We're called with mixed targets (*config and build targets).
543 # Handle them one by one.
545 PHONY += $(MAKECMDGOALS) __build_one_by_one
547 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
552 for i in $(MAKECMDGOALS); do \
553 $(MAKE) -f $(srctree)/Makefile $$i; \
557 ifeq ($(config-targets),1)
558 # ===========================================================================
559 # *config targets only - make sure prerequisites are updated, and descend
560 # in scripts/kconfig to make the *config target
562 KBUILD_DEFCONFIG := sandbox_defconfig
563 export KBUILD_DEFCONFIG KBUILD_KCONFIG
565 config: scripts_basic outputmakefile FORCE
566 $(Q)$(MAKE) $(build)=scripts/kconfig $@
568 %config: scripts_basic outputmakefile FORCE
569 $(Q)$(MAKE) $(build)=scripts/kconfig $@
572 # ===========================================================================
573 # Build targets only - this includes vmlinux, arch specific targets, clean
574 # targets and others. In general all targets except *config targets.
576 # Additional helpers built in scripts/
577 # Carefully list dependencies so we do not try to build scripts twice
580 scripts: scripts_basic scripts_dtc include/config/auto.conf
581 $(Q)$(MAKE) $(build)=$(@)
583 ifeq ($(dot-config),1)
585 -include include/config/auto.conf
587 # Read in dependencies to all Kconfig* files, make sure to run
588 # oldconfig if changes are detected.
589 -include include/config/auto.conf.cmd
591 # To avoid any implicit rule to kick in, define an empty command
592 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
594 # If .config is newer than include/config/auto.conf, someone tinkered
595 # with it and forgot to run make oldconfig.
596 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
597 # we execute the config step to be sure to catch updated Kconfig files
598 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
599 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
600 @# If the following part fails, include/config/auto.conf should be
601 @# deleted so "make silentoldconfig" will be re-run on the next build.
602 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
603 { rm -f include/config/auto.conf; false; }
604 @# include/config.h has been updated after "make silentoldconfig".
605 @# We need to touch include/config/auto.conf so it gets newer
606 @# than include/config.h.
607 @# Otherwise, 'make silentoldconfig' would be invoked twice.
608 $(Q)touch include/config/auto.conf
610 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
611 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
613 -include include/autoconf.mk
614 -include include/autoconf.mk.dep
616 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
617 # is up-to-date. When we switch to a different board configuration, old CONFIG
618 # macros are still remaining in include/config/auto.conf. Without the following
619 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
620 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
621 ifneq ($(wildcard include/config/auto.conf),)
622 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
623 include/config/auto.conf)
624 ifeq ($(autoconf_is_old),)
626 include arch/$(ARCH)/Makefile
631 # These are set by the arch-specific config.mk. Make sure they are exported
632 # so they can be used when building an EFI application.
633 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
634 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
635 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
636 export CFLAGS_EFI # Compiler flags to add when building EFI app
637 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
638 export EFI_TARGET # binutils target if EFI is natively supported
640 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
641 # that (or fail if absent). Otherwise, search for a linker script in a
645 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
646 ifdef CONFIG_SYS_LDSCRIPT
647 # need to strip off double quotes
648 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
652 # If there is no specified link script, we look in a number of places for it
654 ifeq ($(wildcard $(LDSCRIPT)),)
655 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
657 ifeq ($(wildcard $(LDSCRIPT)),)
658 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
660 ifeq ($(wildcard $(LDSCRIPT)),)
661 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
666 # Dummy target needed, because used as prerequisite
667 include/config/auto.conf: ;
668 endif # $(dot-config)
671 # Xtensa linker script cannot be preprocessed with -ansi because of
672 # preprocessor operations on strings that don't make C identifiers.
674 ifeq ($(CONFIG_XTENSA),)
678 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
686 export LTO_CFLAGS LTO_FINAL_LDFLAGS
688 ifeq ($(cc-name),clang)
690 LTO_FINAL_LDFLAGS += -flto
692 AR = $(shell $(CC) -print-prog-name=llvm-ar)
693 NM = $(shell $(CC) -print-prog-name=llvm-nm)
695 NPROC := $(shell nproc 2>/dev/null || echo 1)
696 LTO_CFLAGS += -flto=$(NPROC)
697 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC)
699 # use plugin aware tools
700 AR = $(CROSS_COMPILE)gcc-ar
701 NM = $(CROSS_COMPILE)gcc-nm
704 CFLAGS_NON_EFI += $(LTO_CFLAGS)
706 KBUILD_CFLAGS += $(LTO_CFLAGS)
709 ifeq ($(CONFIG_STACKPROTECTOR),y)
710 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
711 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
713 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
715 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
717 # disable pointer signed / unsigned warnings in gcc 4.0
718 KBUILD_CFLAGS += -Wno-pointer-sign
720 # disable stringop warnings in gcc 8+
721 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
723 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
724 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
725 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
727 # Enabled with W=2, disabled by default as noisy
728 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
730 # change __FILE__ to the relative path from the srctree
731 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
734 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
735 # option to the assembler.
738 # Report stack usage if supported
739 # ARC tools based on GCC 7.1 has an issue with stack usage
740 # with naked functions, see commit message for more details
742 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
743 KBUILD_CFLAGS += -fstack-usage
747 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
748 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
750 ifdef CONFIG_CC_IS_CLANG
751 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
752 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
753 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
754 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
755 # Quiet clang warning: comparison of unsigned expression < 0 is always false
756 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
757 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
758 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
759 # See modpost pattern 2
760 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
761 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
764 # These warnings generated too much noise in a regular build.
765 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
766 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
768 # Prohibit date/time macros, which would make the build non-deterministic
769 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
771 include scripts/Makefile.extrawarn
773 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
774 KBUILD_CPPFLAGS += $(KCPPFLAGS)
775 KBUILD_AFLAGS += $(KAFLAGS)
776 KBUILD_CFLAGS += $(KCFLAGS)
778 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
780 # Use UBOOTINCLUDE when you must reference the include/ directory.
781 # Needed to be compatible with the O= option
784 $(if $(KBUILD_SRC), -I$(srctree)/include) \
785 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
786 $(if $(CONFIG_HAS_THUMB2), \
787 $(if $(CONFIG_CPU_V7M), \
788 -I$(srctree)/arch/arm/thumb1/include), \
789 -I$(srctree)/arch/arm/thumb1/include)) \
790 -I$(srctree)/arch/$(ARCH)/include \
791 -include $(srctree)/include/linux/kconfig.h
793 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
796 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
798 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
800 #########################################################################
801 # U-Boot objects....order is important (i.e. start must be first)
803 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
805 libs-$(CONFIG_API) += api/
806 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
809 libs-$(CONFIG_OF_EMBED) += dts/
816 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
817 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
818 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
819 libs-y += drivers/usb/cdns3/
820 libs-y += drivers/usb/dwc3/
821 libs-y += drivers/usb/common/
822 libs-y += drivers/usb/emul/
823 libs-y += drivers/usb/eth/
824 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
825 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
826 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
827 libs-y += drivers/usb/host/
828 libs-y += drivers/usb/mtu3/
829 libs-y += drivers/usb/musb/
830 libs-y += drivers/usb/musb-new/
831 libs-y += drivers/usb/phy/
832 libs-y += drivers/usb/ulpi/
836 libs-$(CONFIG_UNIT_TEST) += test/
837 libs-$(CONFIG_UT_ENV) += test/env/
838 libs-$(CONFIG_UT_OPTEE) += test/optee/
839 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
841 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
843 libs-y := $(sort $(libs-y))
845 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
847 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
849 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
851 u-boot-init := $(head-y)
852 u-boot-main := $(libs-y)
856 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
857 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
859 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
861 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
863 ifdef CONFIG_CC_COVERAGE
864 KBUILD_CFLAGS += --coverage
865 PLATFORM_LIBGCC += -lgcov
869 export PLATFORM_LIBGCC
871 # Special flags for CPP when processing the linker script.
872 # Pass the version down so we can handle backwards compatibility
875 -include $(srctree)/include/u-boot/u-boot.lds.h \
877 $(shell $(LD) --version | \
878 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
880 #########################################################################
881 #########################################################################
883 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
884 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
889 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
890 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
895 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
896 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
901 # Statically apply RELA-style relocations (currently arm64 only)
902 # This is useful for arm64 where static relocation needs to be performed on
903 # the raw binary, but certain simulators only accept an ELF file (but don't
904 # do the relocation).
905 ifneq ($(CONFIG_STATIC_RELA),)
906 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
907 quiet_cmd_static_rela = RELOC $@
909 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \
910 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \
911 tools/relocate-rela $(3) $(4) $$start $$end
913 quiet_cmd_static_rela =
917 # Always append INPUTS so that arch config.mk's can add custom ones
918 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
920 INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
921 ifeq ($(CONFIG_SPL_FSL_PBL),y)
922 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
924 ifneq ($(CONFIG_NXP_ESBC), y)
925 # For Secure Boot The Image needs to be signed and Header must also
926 # be included. So The image has to be built explicitly
927 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
930 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
931 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
932 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
934 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
935 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
937 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
940 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
941 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb
942 INPUTS-$(CONFIG_BINMAN_STANDALONE_FDT) += u-boot.dtb
943 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
944 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
946 INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
947 ifneq ($(CONFIG_SPL_TARGET),)
948 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
950 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
951 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
952 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
954 # Generate this input file for binman
955 ifeq ($(CONFIG_SPL),)
956 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
959 # Add optional build target if defined in board/cpu/soc headers
960 ifneq ($(CONFIG_BUILD_TARGET),)
961 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
964 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
965 INPUTS-y += init_sp_bss_offset_check
968 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
969 INPUTS-y += u-boot-with-dtb.bin
972 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
973 # On ARM64 this target is produced by binman so we don't need this dep
974 ifeq ($(CONFIG_ARM64),y)
975 ifeq ($(CONFIG_SPL),y)
976 # TODO: Get binman to generate this too
977 INPUTS-y += u-boot-rockchip.bin
980 ifeq ($(CONFIG_SPL),y)
981 # Generate these inputs for binman which will create the output files
982 INPUTS-y += idbloader.img u-boot.img
987 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
988 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
989 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
991 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
993 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
994 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
996 LDFLAGS_u-boot += --build-id=none
998 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
999 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
1002 # insure the checker run with the right endianness
1003 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1005 # the checker needs the correct machine size
1006 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1008 # Normally we fill empty space with 0xff
1009 quiet_cmd_objcopy = OBJCOPY $@
1010 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1011 $(OBJCOPYFLAGS_$(@F)) $< $@
1013 # Provide a version which does not do this, for use by EFI
1014 quiet_cmd_zobjcopy = OBJCOPY $@
1015 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1017 quiet_cmd_efipayload = OBJCOPY $@
1018 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1020 MKIMAGEOUTPUT ?= /dev/null
1022 quiet_cmd_mkimage = MKIMAGE $@
1023 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1024 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1026 quiet_cmd_mkfitimage = MKIMAGE $@
1027 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1028 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1029 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1031 quiet_cmd_cat = CAT $@
1032 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1034 append = cat $(filter-out $< $(PHONY), $^) >> $@
1036 quiet_cmd_pad_cat = CAT $@
1037 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1039 quiet_cmd_lzma = LZMA $@
1040 cmd_lzma = lzma -c -z -k -9 $< > $@
1044 quiet_cmd_cfgcheck = CFGCHK $2
1045 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
1046 $(srctree)/scripts/config_whitelist.txt $(srctree)
1048 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1049 got = $(foreach cfg,$(1),$($(cfg)))
1051 # expected value 'y for each one
1052 expect = $(foreach cfg,$(1),y)
1054 # Show a deprecation message
1056 # 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1057 # 2: Name of component (e.g . "Ethernet drivers")
1058 # 3: Release deadline (e.g. "v202.07")
1059 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1060 # Note: Script avoids bash construct, hence the strange double 'if'
1061 # (patches welcome!)
1063 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1064 echo >&2 "===================== WARNING ======================"; \
1065 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1066 echo >&2 "for $(2)). Please update the board to use"; \
1067 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1068 echo >&2 "update by the deadline may result in board removal."; \
1069 echo >&2 "See doc/driver-model/migration.rst for more info."; \
1070 echo >&2 "===================================================="; \
1078 all: .binman_stamp inputs
1079 ifeq ($(CONFIG_BINMAN),y)
1080 $(call if_changed,binman)
1083 # Timestamp file to make sure that binman always runs
1084 .binman_stamp: FORCE
1087 ifeq ($(CONFIG_DEPRECATED),y)
1088 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1090 ifeq ($(CONFIG_OF_EMBED),y)
1091 @echo >&2 "===================== WARNING ======================"
1092 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1093 @echo >&2 "be used for debugging purposes. Please use"
1094 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1095 @echo >&2 "See doc/README.fdt-control for more info."
1096 @echo >&2 "===================================================="
1098 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1099 @echo >&2 "===================== WARNING ======================"
1100 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1101 @echo >&2 "to binman instead, to avoid the proliferation of"
1102 @echo >&2 "arch-specific scripts with no tests."
1103 @echo >&2 "===================================================="
1105 ifneq ($(CONFIG_DM),y)
1106 @echo >&2 "===================== WARNING ======================"
1107 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
1108 @echo >&2 "compulsory starting with the v2020.01 release."
1109 @echo >&2 "Failure to update may result in board removal."
1110 @echo >&2 "See doc/driver-model/migration.rst for more info."
1111 @echo >&2 "===================================================="
1113 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1114 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1115 $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET))
1116 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1117 @# Check that this build does not use CONFIG options that we do not
1118 @# know about unless they are in Kconfig. All the existing CONFIG
1119 @# options are whitelisted, so new ones should not be added.
1120 $(call cmd,cfgcheck,u-boot.cfg)
1126 $(Q)$(MAKE) $(build)=dts dtbs
1128 quiet_cmd_copy = COPY $@
1131 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1133 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1134 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1135 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1136 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1138 FINAL_DTB_CONTAINER = fit-dtb.blob
1141 fit-dtb.blob.gz: fit-dtb.blob
1144 fit-dtb.blob.lzo: fit-dtb.blob
1147 fit-dtb.blob: dts/dt.dtb FORCE
1148 $(call if_changed,mkimage)
1149 ifneq ($(SOURCE_DATE_EPOCH),)
1150 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1151 chmod 0600 fit-dtb.blob
1154 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1156 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1158 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1161 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1162 $(call if_changed,cat)
1164 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1165 $(call if_changed,cat)
1168 u-boot.bin: u-boot-fit-dtb.bin FORCE
1169 $(call if_changed,copy)
1171 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1172 $(call if_changed,cat)
1174 else ifeq ($(CONFIG_OF_SEPARATE),y)
1175 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1176 $(call if_changed,cat)
1178 u-boot.bin: u-boot-dtb.bin FORCE
1179 $(call if_changed,copy)
1181 u-boot.bin: u-boot-nodtb.bin FORCE
1182 $(call if_changed,copy)
1185 # we call Makefile in arch/arm/mach-imx which
1186 # has targets which are dependent on targets defined
1187 # here. make could not resolve them and we must ensure
1188 # that they are finished before calling imx targets
1189 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1190 IMX_DEPS = u-boot-fit-dtb.bin
1193 %.imx: $(IMX_DEPS) %.bin
1194 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1198 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1200 quiet_cmd_copy = COPY $@
1203 u-boot.dtb: dts/dt.dtb
1206 OBJCOPYFLAGS_u-boot.hex := -O ihex
1208 OBJCOPYFLAGS_u-boot.srec := -O srec
1210 u-boot.hex u-boot.srec: u-boot FORCE
1211 $(call if_changed,objcopy)
1213 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1215 u-boot-elf.srec: u-boot.elf FORCE
1216 $(call if_changed,objcopy)
1218 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1220 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1221 $(call if_changed,objcopy)
1224 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1226 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1227 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1228 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1230 binary_size_check: u-boot-nodtb.bin FORCE
1231 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1232 map_size=$(shell cat u-boot.map | \
1233 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1236 if [ "" != "$$map_size" ]; then \
1237 if test $$map_size -ne $$file_size; then \
1238 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1239 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1244 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1245 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1246 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1248 subtract_sys_malloc_f_len = true
1250 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1251 # so low that the DTB could probably use 90%+ of the available space, for
1252 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1253 # safe for now and tweak this later if space becomes tight.
1254 # A rejected alternative would be to check that some absolute minimum stack
1255 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1256 # deliberately build-specific, to take account of build-to-build stack usage
1257 # differences due to different feature sets, there is no common absolute value
1259 init_sp_bss_offset_check: u-boot.dtb FORCE
1260 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1261 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1262 $(subtract_sys_malloc_f_len) ; \
1263 quarter_space=$$(($${space} / 4)) ; \
1264 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1265 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1266 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1271 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1273 quiet_cmd_objcopy_uboot = OBJCOPY $@
1274 ifdef cmd_static_rela
1275 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; }
1277 cmd_objcopy_uboot = $(cmd_objcopy)
1280 u-boot-nodtb.bin: u-boot FORCE
1281 $(call if_changed,objcopy_uboot)
1286 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1290 # ---------------------------------------------------------------------------
1291 # Use 'make BINMAN_DEBUG=1' to enable debugging
1292 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1293 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1295 quiet_cmd_binman = BINMAN $@
1296 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1297 --toolpath $(objtree)/tools \
1298 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1299 build -u -d u-boot.dtb -O . -m --allow-missing \
1300 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1301 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
1302 -a atf-bl31-path=${BL31} \
1303 -a opensbi-path=${OPENSBI} \
1304 -a default-dt=$(default_dt) \
1305 -a scp-path=$(SCP) \
1306 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1307 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1308 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1309 -a tpl-dtb=$(CONFIG_SPL_OF_REAL) \
1312 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1314 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1316 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1317 $(call if_changed,objcopy)
1320 # U-Boot entry point, needed for booting of full-blown U-Boot
1321 # from the SPL U-Boot version.
1323 ifndef CONFIG_SYS_UBOOT_START
1324 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1327 # Boards with more complex image requirements can provide an .its source file
1328 # or a generator script
1329 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1331 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1332 U_BOOT_ITS := u-boot.its
1333 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1334 $(call if_changed,copy)
1336 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1337 U_BOOT_ITS := u-boot.its
1338 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1339 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1341 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1342 U_BOOT_ITS_DEPS += u-boot
1344 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1345 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1346 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1350 ifdef CONFIG_SPL_LOAD_FIT
1351 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1352 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1353 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1354 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1355 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1356 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1357 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1359 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1360 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1361 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1362 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1363 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1364 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1365 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1368 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1370 # Some boards have the kwbimage.cfg file written in advance, while some
1371 # other boards generate it on the fly during the build in the build tree.
1372 # Let's check if the file exists in the build tree first, otherwise we
1373 # fall back to use the one in the source tree.
1374 KWD_CONFIG_FILE = $(shell \
1375 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1376 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1378 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1381 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1382 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1384 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1385 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1386 $(if $(KEYDIR),-k $(KEYDIR))
1388 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1389 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1391 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1392 UBOOT_BIN := u-boot-with-dtb.bin
1394 UBOOT_BIN := u-boot.bin
1397 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1398 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1399 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1401 u-boot.bin.lzma: u-boot.bin FORCE
1402 $(call if_changed,lzma)
1404 u-boot-lzma.img: u-boot.bin.lzma FORCE
1405 $(call if_changed,mkimage)
1407 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1408 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1409 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \
1410 ,$(UBOOT_BIN)) FORCE
1411 $(call if_changed,mkimage)
1414 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1415 MKIMAGEFLAGS_u-boot.itb =
1417 MKIMAGEFLAGS_u-boot.itb = -E
1419 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1422 u-boot.itb: u-boot-nodtb.bin \
1423 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1425 $(call if_changed,mkfitimage)
1429 u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1430 $(call if_changed,mkimage)
1432 u-boot.sha1: u-boot.bin
1433 tools/ubsha1 u-boot.bin
1436 $(OBJDUMP) -d $< > $@
1438 ifneq ($(CONFIG_SPL_PAYLOAD),)
1439 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1441 SPL_PAYLOAD := u-boot.bin
1444 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1446 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1447 --pad-to=$(CONFIG_SPL_PAD_TO)
1448 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1449 $(call if_changed,pad_cat)
1451 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1454 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
1455 MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
1456 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
1457 $(call if_changed,mkimage)
1458 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
1459 $(call if_changed,cat)
1461 MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
1462 idbloader.img: spl/u-boot-spl.bin FORCE
1463 $(call if_changed,mkimage)
1466 ifeq ($(CONFIG_ARM64),y)
1467 OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
1468 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1469 u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
1470 $(call if_changed,pad_cat)
1471 endif # CONFIG_ARM64
1473 endif # CONFIG_ARCH_ROCKCHIP
1475 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1476 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1478 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1479 $(call if_changed,mkimage)
1481 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1483 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1484 $(call if_changed,objcopy)
1486 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1488 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1489 $(call if_changed,objcopy)
1491 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1492 $(call if_changed,cat)
1496 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1497 --pad-to=$(CONFIG_TPL_PAD_TO)
1498 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1499 $(call if_changed,pad_cat)
1501 SPL: spl/u-boot-spl.bin FORCE
1502 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1504 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1505 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1506 u-boot.cnt: u-boot.bin FORCE
1507 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1509 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1510 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1512 ifeq ($(CONFIG_BINMAN),y)
1513 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1514 $(call if_changed,binman)
1515 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1517 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1518 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1523 u-boot.uim: u-boot.bin FORCE
1524 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1526 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1527 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1529 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1531 u-boot.ubl: u-boot-with-spl.bin FORCE
1532 $(call if_changed,mkimage)
1534 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1535 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1536 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1537 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1538 $(call if_changed,mkimage)
1540 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1541 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1542 $(call if_changed,pad_cat)
1544 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1545 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1546 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1547 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1549 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1550 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1551 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1552 $(call if_changed,mkimage)
1554 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1555 quiet_cmd_gensplx4 = GENSPLX4 $@
1556 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
1557 --pad-to=$(CONFIG_SPL_PAD_TO) \
1558 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
1559 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1560 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1561 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1562 $(call if_changed,gensplx4)
1564 quiet_cmd_socboot = SOCBOOT $@
1565 cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1566 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1567 $(call if_changed,socboot)
1569 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1570 cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1571 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1572 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1573 spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1574 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1575 { rm -f $@ spl/u-boot-spl.pad; false; }
1576 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1577 $(call if_changed,gensplpadx4)
1579 quiet_cmd_socnandboot = SOCNANDBOOT $@
1580 cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1581 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1582 $(call if_changed,socnandboot)
1586 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1587 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1588 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1589 $(call if_changed,binman)
1591 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1592 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1593 u-boot-br.bin: u-boot FORCE
1594 $(call if_changed,objcopy)
1598 quiet_cmd_ldr = LD $@
1599 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1600 $(filter-out FORCE,$^) -o $@
1603 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1604 u-boot-x86-start16.bin: u-boot FORCE
1605 $(call if_changed,objcopy)
1607 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1608 u-boot-x86-reset16.bin: u-boot FORCE
1609 $(call if_changed,objcopy)
1613 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1614 u-boot-app.efi: u-boot FORCE
1615 $(call if_changed,zobjcopy)
1617 u-boot.bin.o: u-boot.bin FORCE
1618 $(call if_changed,efipayload)
1620 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1621 $(call if_changed_dep,cpp_lds)
1623 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1624 quiet_cmd_u-boot_payload ?= LD $@
1625 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1626 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1627 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1628 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1630 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1631 $(call if_changed,u-boot_payload)
1633 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1634 u-boot-payload.efi: u-boot-payload FORCE
1635 $(call if_changed,zobjcopy)
1637 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1638 $(call if_changed,cat)
1640 #Add a target to create boot binary having SPL binary in PBI format
1641 #concatenated with u-boot binary. It is need by PowerPC SoC having
1642 #internal SRAM <= 512KB.
1643 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1644 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1645 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1647 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1648 $(call if_changed,mkimage)
1651 UBOOT_BINLOAD := u-boot.img
1653 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1654 UBOOT_BINLOAD := u-boot-with-dtb.bin
1656 UBOOT_BINLOAD := u-boot.bin
1660 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1663 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1664 $(call if_changed,pad_cat)
1666 # PPC4xx needs the SPL at the end of the image, since the reset vector
1667 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1668 # and need to introduce a new build target with the full blown U-Boot
1669 # at the start padded up to the start of the SPL image. And then concat
1670 # the SPL image to the end.
1672 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1673 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1674 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1675 $(call if_changed,pad_cat)
1677 quiet_cmd_u-boot-elf ?= LD $@
1678 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1679 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1680 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1681 u-boot.elf: u-boot.bin u-boot-elf.lds
1682 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1683 $(call if_changed,u-boot-elf)
1685 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1686 $(call if_changed_dep,cpp_lds)
1688 # MediaTek's ARM-based u-boot needs a header to contains its load address
1689 # which is parsed by the BootROM.
1690 # If the SPL build is enabled, the header will be added to the spl binary,
1691 # and the spl binary and the u-boot.img will be combined into one file.
1692 # Otherwise the header will be added to the u-boot.bin directly.
1694 ifeq ($(CONFIG_SPL),y)
1695 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1697 u-boot-mtk.bin: u-boot-with-spl.bin
1698 $(call if_changed,copy)
1700 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1701 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1702 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1704 u-boot-mtk.bin: u-boot.bin FORCE
1705 $(call if_changed,mkimage)
1708 quiet_cmd_endian_swap = SWAP $@
1709 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1711 u-boot-swap.bin: u-boot.bin FORCE
1712 $(call if_changed,endian_swap)
1714 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1716 # Generate linker list symbols references to force compiler to not optimize
1717 # them away when compiling with LTO
1719 u-boot-keep-syms-lto := keep-syms-lto.o
1720 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1722 quiet_cmd_keep_syms_lto = KSL $@
1723 cmd_keep_syms_lto = \
1724 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1726 quiet_cmd_keep_syms_lto_cc = KSLCC $@
1727 cmd_keep_syms_lto_cc = \
1728 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1730 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1731 $(call if_changed,keep_syms_lto)
1732 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1733 $(call if_changed,keep_syms_lto_cc)
1735 u-boot-keep-syms-lto :=
1738 # Rule to link u-boot
1739 # May be overridden by arch/$(ARCH)/config.mk
1741 quiet_cmd_u-boot__ ?= LTO $@
1743 $(CC) -nostdlib -nostartfiles \
1744 $(LTO_FINAL_LDFLAGS) $(c_flags) \
1745 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \
1746 -T u-boot.lds $(u-boot-init) \
1747 -Wl,--whole-archive \
1749 $(u-boot-keep-syms-lto) \
1751 -Wl,--no-whole-archive \
1752 -Wl,-Map,u-boot.map; \
1753 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1755 quiet_cmd_u-boot__ ?= LD $@
1756 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1757 -T u-boot.lds $(u-boot-init) \
1760 --no-whole-archive \
1761 $(PLATFORM_LIBS) -Map u-boot.map; \
1762 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1765 quiet_cmd_smap = GEN common/system_map.o
1767 smap=`$(call SYSTEM_MAP,u-boot) | \
1768 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1769 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1770 -c $(srctree)/common/system_map.c -o common/system_map.o
1772 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
1773 +$(call if_changed,u-boot__)
1774 ifeq ($(CONFIG_KALLSYMS),y)
1776 $(call cmd,u-boot__) common/system_map.o
1779 ifeq ($(CONFIG_RISCV),y)
1780 @tools/prelink-riscv $@ 0
1783 quiet_cmd_sym ?= SYM $@
1784 cmd_sym ?= $(OBJDUMP) -t $< > $@
1785 u-boot.sym: u-boot FORCE
1786 $(call if_changed,sym)
1788 # The actual objects are generated when descending,
1789 # make sure no implicit rule kicks in
1790 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1792 # Handle descending into subdirectories listed in $(u-boot-dirs)
1793 # Preset locale variables to speed up the build process. Limit locale
1794 # tweaks to this spot to avoid wrong language settings when running
1795 # make menuconfig etc.
1796 # Error messages still appears in the original language
1798 PHONY += $(u-boot-dirs)
1799 $(u-boot-dirs): prepare scripts
1800 $(Q)$(MAKE) $(build)=$@
1803 # The "tools" are needed early
1804 $(filter-out tools, $(u-boot-dirs)): tools
1805 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1806 # is "yes"), so compile examples after U-Boot is compiled.
1807 examples: $(filter-out examples, $(u-boot-dirs))
1809 define filechk_uboot.release
1810 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1813 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1814 include/config/uboot.release: include/config/auto.conf FORCE
1815 $(call filechk,uboot.release)
1818 # Things we need to do before we recursively start building the kernel
1819 # or the modules are listed in "prepare".
1820 # A multi level approach is used. prepareN is processed before prepareN-1.
1821 # archprepare is used in arch Makefiles and when processed asm symlink,
1822 # version.h and scripts_basic is processed / created.
1824 # Listed in dependency order
1825 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1827 # prepare3 is used to check if we are building in a separate output directory,
1829 # 1) Check that make has not been executed in the kernel src $(srctree)
1830 prepare3: include/config/uboot.release
1831 ifneq ($(KBUILD_SRC),)
1832 @$(kecho) ' Using $(srctree) as source for U-Boot'
1833 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1834 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1835 echo >&2 " in the '$(srctree)' directory.";\
1840 # prepare2 creates a makefile if using a separate output directory
1841 prepare2: prepare3 outputmakefile cfg
1843 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \
1844 include/config/auto.conf
1845 ifeq ($(wildcard $(LDSCRIPT)),)
1846 @echo >&2 " Could not find linker script."
1850 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1851 prepare1: $(defaultenv_h)
1853 envtools: $(defaultenv_h)
1856 archprepare: prepare1 scripts_basic
1858 prepare0: archprepare FORCE
1859 $(Q)$(MAKE) $(build)=.
1861 # All the preparing..
1864 # Generate some files
1865 # ---------------------------------------------------------------------------
1867 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1868 define filechk_version.h
1869 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1870 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1871 echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1872 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1873 sed -e "s/^0*//"); \
1874 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1875 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1878 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1879 # The BSD date on the other hand behaves different and would produce errors
1880 # with the misused '-d' switch. Respect that and search a working date with
1881 # well known pre- and suffixes for the GNU variant of date.
1882 define filechk_timestamp.h
1883 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1884 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1886 for date in gdate date.gnu date; do \
1887 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1889 if test -n "$${DATE}"; then \
1890 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1891 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1892 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1893 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1894 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
1899 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1900 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1901 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1902 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1903 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
1907 define filechk_defaultenv.h
1908 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
1910 sed -e 's/\\\x0\s*//g' | \
1915 (if test -n "$${DEVICE_TREE}"; then \
1916 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1918 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1922 $(version_h): include/config/uboot.release FORCE
1923 $(call filechk,version.h)
1925 $(timestamp_h): $(srctree)/Makefile FORCE
1926 $(call filechk,timestamp.h)
1928 $(dt_h): $(srctree)/Makefile FORCE
1929 $(call filechk,dt.h)
1931 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1932 $(call filechk,defaultenv.h)
1934 # ---------------------------------------------------------------------------
1937 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
1938 dtstree := arch/$(SRCARCH)/boot/dts
1943 %.dtb: prepare3 scripts_dtc
1944 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
1946 PHONY += dtbs dtbs_install
1947 dtbs: prepare3 scripts_dtc
1948 $(Q)$(MAKE) $(build)=$(dtstree)
1951 $(Q)$(MAKE) $(dtbinst)=$(dtstree)
1953 ifdef CONFIG_OF_EARLY_FLATTREE
1959 PHONY += scripts_dtc
1960 scripts_dtc: scripts_basic
1961 $(Q)$(MAKE) $(build)=scripts/dtc
1963 # ---------------------------------------------------------------------------
1964 quiet_cmd_cpp_lds = LDS $@
1965 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1966 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1968 u-boot.lds: $(LDSCRIPT) prepare FORCE
1969 $(call if_changed_dep,cpp_lds)
1971 spl/u-boot-spl.bin: spl/u-boot-spl
1975 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
1978 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
1981 spl/u-boot-spl: tools prepare \
1982 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1983 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1984 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1986 spl/sunxi-spl.bin: spl/u-boot-spl
1989 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1992 spl/u-boot-spl.sfp: spl/u-boot-spl
1995 spl/boot.bin: spl/u-boot-spl
1998 tpl/u-boot-tpl.bin: tools prepare \
1999 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
2000 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
2003 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2009 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2010 -name '*.[chS]' -print`
2014 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2015 -name '*.[chS]' -print`
2017 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2019 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2020 grep -xvf - cscope.files > cscope.files.no-symlinks; \
2021 mv cscope.files.no-symlinks cscope.files
2026 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2029 @$(call SYSTEM_MAP,$<) > $@
2031 #########################################################################
2033 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2034 # R_AARCH64_RELATIVE (64-bit).
2035 checkarmreloc: u-boot
2036 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2037 grep R_A | sort -u`"; \
2038 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2039 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2040 echo "$< contains unexpected relocations: $$RELOC"; \
2044 tools/version.h: include/version.h
2045 $(Q)mkdir -p $(dir $@)
2046 $(call if_changed,copy)
2048 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2049 $(Q)$(MAKE) $(build)=tools/env
2051 tools-only: export TOOLS_ONLY=y
2052 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2053 $(Q)$(MAKE) $(build)=tools
2055 tools-all: export HOST_TOOLS_ALL=y
2056 tools-all: envtools tools ;
2058 cross_tools: export CROSS_BUILD_TOOLS=y
2059 cross_tools: tools ;
2063 git log --no-merges U-Boot-1_1_5.. | \
2064 unexpand -a | sed -e 's/\s\s*$$//' > $@
2066 #########################################################################
2069 # Cleaning is done on three levels.
2070 # make clean Delete most generated files
2071 # Leave enough to build external modules
2072 # make mrproper Delete the current configuration, and all generated files
2073 # make distclean Remove editor backup files, patch leftover files and the like
2075 # Directories & files removed with 'make clean'
2076 CLEAN_DIRS += $(MODVERDIR) \
2077 $(foreach d, spl tpl, $(patsubst %,$d/%, \
2078 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2080 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
2081 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
2082 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2083 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2084 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c
2086 # Directories & files removed with 'make mrproper'
2087 MRPROPER_DIRS += include/config include/generated spl tpl \
2088 .tmp_objdiff doc/output include/asm
2090 # Remove include/asm symlink created by U-Boot before v2014.01
2091 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2092 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2093 drivers/video/fonts/*.S include/asm
2095 # clean - Delete most, but leave enough to build external modules
2097 clean: rm-dirs := $(CLEAN_DIRS)
2098 clean: rm-files := $(CLEAN_FILES)
2100 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2102 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2104 PHONY += $(clean-dirs) clean archclean
2106 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2108 clean: $(clean-dirs)
2111 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2112 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2113 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2114 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2115 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2116 -o -name '*.asn1.[ch]' \
2117 -o -name '*.symtypes' -o -name 'modules.order' \
2118 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2119 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
2120 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2121 -type f -print | xargs rm -f
2123 # mrproper - Delete all generated files, including .config
2125 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2126 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2127 mrproper-dirs := $(addprefix _mrproper_,scripts)
2129 PHONY += $(mrproper-dirs) mrproper archmrproper
2131 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2133 mrproper: clean $(mrproper-dirs)
2136 @rm -f arch/*/include/asm/arch
2143 @find $(srctree) $(RCS_FIND_IGNORE) \
2144 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2145 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2146 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2147 -o -name '*.pyc' \) \
2148 -type f -print | xargs rm -f
2149 @rm -f boards.cfg CHANGELOG
2152 F=`basename $(srctree)` ; cd .. ; \
2153 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2156 @echo 'Cleaning targets:'
2157 @echo ' clean - Remove most generated files but keep the config'
2158 @echo ' mrproper - Remove all generated files + config + various backup files'
2159 @echo ' distclean - mrproper + remove editor backup and patch files'
2161 @echo 'Configuration targets:'
2162 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2164 @echo 'Test targets:'
2166 @echo ' check - Run all automated tests that use sandbox'
2167 @echo ' qcheck - Run quick automated tests that use sandbox'
2168 @echo ' tcheck - Run quick automated tests on tools'
2170 @echo 'Other generic targets:'
2171 @echo ' all - Build all necessary images depending on configuration'
2172 @echo ' tests - Build U-Boot for sandbox and run tests'
2173 @echo '* u-boot - Build the bare u-boot'
2174 @echo ' dir/ - Build all files in dir and below'
2175 @echo ' dir/file.[oisS] - Build specified target only'
2176 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2177 @echo ' (requires a recent binutils and recent build (System.map))'
2178 @echo ' tags/ctags - Generate ctags file for editors'
2179 @echo ' etags - Generate etags file for editors'
2180 @echo ' cscope - Generate cscope index'
2181 @echo ' ubootrelease - Output the release version string (use with make -s)'
2182 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2183 @echo " cfg - Don't build, just create the .cfg files"
2184 @echo " envtools - Build only the target-side environment tools"
2186 @echo 'Static analysers'
2187 @echo ' checkstack - Generate a list of stack hogs'
2188 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2190 @echo 'Documentation targets:'
2191 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2193 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2194 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2195 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2196 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2197 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2198 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2199 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2200 @echo ' 1: warnings which may be relevant and do not occur too often'
2201 @echo ' 2: warnings which occur quite often but may still be relevant'
2202 @echo ' 3: more obscure warnings, can most likely be ignored'
2203 @echo ' Multiple levels can be combined with W=12 or W=123'
2205 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2206 @echo 'For further info see the ./README file'
2212 $(srctree)/test/run quick
2215 $(srctree)/test/run tools
2217 # Documentation targets
2218 # ---------------------------------------------------------------------------
2219 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2220 linkcheckdocs dochelp refcheckdocs
2221 PHONY += $(DOC_TARGETS)
2222 $(DOC_TARGETS): scripts_basic FORCE
2223 $(Q)$(MAKE) $(build)=doc $@
2225 PHONY += checkstack ubootrelease ubootversion
2228 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2229 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2232 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2235 @echo $(UBOOTVERSION)
2238 # ---------------------------------------------------------------------------
2239 # Single targets are compatible with:
2240 # - build with mixed source and output
2241 # - build with separate output dir 'make O=...'
2242 # - external modules
2244 # target-dir => where to store outputfile
2245 # build-dir => directory in kernel source tree to use
2247 ifeq ($(KBUILD_EXTMOD),)
2248 build-dir = $(patsubst %/,%,$(dir $@))
2249 target-dir = $(dir $@)
2251 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2252 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2253 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2256 %.s: %.c prepare scripts FORCE
2257 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2258 %.i: %.c prepare scripts FORCE
2259 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2260 %.o: %.c prepare scripts FORCE
2261 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2262 %.lst: %.c prepare scripts FORCE
2263 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2264 %.s: %.S prepare scripts FORCE
2265 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2266 %.o: %.S prepare scripts FORCE
2267 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2268 %.symtypes: %.c prepare scripts FORCE
2269 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2272 /: prepare scripts FORCE
2274 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2275 $(build)=$(build-dir)
2276 %/: prepare scripts FORCE
2278 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2279 $(build)=$(build-dir)
2280 %.ko: prepare scripts FORCE
2282 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2283 $(build)=$(build-dir) $(@:.ko=.o)
2284 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2286 quiet_cmd_genenv = GENENV $@
2287 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2288 sed --in-place -e 's/\x00/\x0A/g' $@
2290 u-boot-initial-env: u-boot.bin
2291 $(call if_changed,genenv)
2293 # Consistency checks
2294 # ---------------------------------------------------------------------------
2299 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2301 # FIXME Should go into a make.lib or something
2302 # ===========================================================================
2304 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2305 cmd_rmdirs = rm -rf $(rm-dirs)
2307 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2308 cmd_rmfiles = rm -f $(rm-files)
2310 # read all saved command lines
2312 cmd_files := $(wildcard .*.cmd)
2314 ifneq ($(cmd_files),)
2315 $(cmd_files): ; # Do not try to update included dependency files
2316 include $(cmd_files)
2319 endif #ifeq ($(config-targets),1)
2320 endif #ifeq ($(mixed-targets),1)
2321 endif # skip-makefile
2326 # Declare the contents of the PHONY variable as phony. We keep that
2327 # information in a variable so we can use it in if_changed and friends.